# 打印乘法口诀
# 1x1=1
# 1x2=2 2x2=4
# 1x3=3 2x3=6 3x3=9
# 1x4=4 2x4=8 3x4=12 4x4=16
# 1x5=5 2x5=10 3x5=15 4x5=20 5x5=25
# 1x6=6 2x6=12 3x6=18 4x6=24 5x6=30 6x6=36
# 1x7=7 2x7=14 3x7=21 4x7=28 5x7=35 6x7=42 7x7=49
# 1x8=8 2x8=16 3x8=24 4x8=32 5x8=40 6x8=48 7x8=56 8x8=64
# 1x9=9 2x9=18 3x9=27 4x9=36 5x9=45 6x9=54 7x9=63 8x9=72 9x9=81
for i in range(1,10):
    # print('---- '*i)
    for j in range(1,i+1):
        print(f'{j}*{i}={(j*i):2d} ',end='')
    print('')